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llnrrnn STATES JAMES F. MOELROY, OF ALBANY, NEWV YORK, ASSIGNOR TO THE CONSOLI- DATED OAR-HEATING COMPANY, OF SAME PLACE.

GAS-BURNER.

SPECIFICATION forming part of Letters Patent No. 555,875, dated March 3, 1896. Application filed S pt m r 3, 1895. Serial No. 661,271. (No model.)

To all whom it may concern.-

Be it known that 1, JAMES F. MCELROY, a citizen of the United States, residing in the city and county of Albany, State of New 7 York, have invented a new and useful Improvement in Gas-Burners, of which the following is a specification.

My invention relates primarily to gas-lamps and especially that class which are used in 10 railway-trains and in which a multiplicity of burners is employed, although it is applicable to lamps having but one burner; and it consists in the novel arrangement of means for preventing the discharge of dust and dirt 13 with the gas to the burner and yet readily permitting the cleaning and reassembling of parts without disturbing the adjustment of the flow of gas to the burners.

In the drawings, Figure 1 is a vertical section through the burners of the lamps, in which two burners are shown, and the means employed for removing the dirt and dust from the illuminating-gas. Fig. 2 is a perspective view of the gauze employed, shown in the form of a cylinder.

Similar letters refer to similar parts.

In the drawings, Fig. 1 represents generally, as stated, the vertical section through two burners and a portion of the induction 3o gas-pipe leading thereto and the means for straining out the dust and dirt from the outflowing gas and in which A is the central casing.

13 is the induction gas-pipe, which is usually 3 5 arranged centrally with reference to the burners whetherin nests of two or more. Usually, however, four are employed in this class of lamps.

O O are burners of the usual form, about 40 which there is nothing new.

D D are passage-ways leading'from the central chamber E to each burner, respectively. F F are setscrews adj ustably placed in the outer ends of the passage-ways in such manner as to give control or adjustment of the orifices F F leading to the burner-tip.

Preferably, so far as described, with the exception of the set-screws, the apparatus is made of one casting containing a common leadingtherefrom. The upper portion of this central chamber at E receives the pipe from chamber with the radial passage-ways D D the gasometer. The lower portion is closed off by a screw-plug H of peculiar construction and which is intended to be gas-tight.

At J J the upper portion of the common chamber is made in the form of a frustum of a cone. The screw-plug H at H has a recess in its upper face, which is also in the form of an inverted frustum of a cone.

A cylinder of wire-gauze, as shown in Fig.

2, (marked K,) is cut of the right length so as to be forced closely into the contracting conical portion J J of the chamber'and also in the contracting conical portion 11 of the screwplug H. This gauze is cut centrally, as shown at in Fig. 2, so as to permit its edges to interlap. Thus when the screwplug H is driven into position the gauze cylinder, being slightly longer than the upper edge of the screw-plug, 70 will be forced into the upper and lower conical faces and at the same moment itsedges will be shut over, so as to make it of smaller diameter and thus compel it to remain in position, at the same time giving it a tight fit around its upper and lower edges. It will be noticed that when in this position, as shown in Fig. 1, there is a circumferential space L surrounding the periphery of the gauze cyl' inder and which is common to all the passageways D D leading to the burners. By this means I utilize the whole of the area of the gauze cylinder as a straining medium instead of simply closing in the orifices D D by gauze diaphragms, which reduce their area to such an extent as to seriously interfere with the free passage of gas. The form proposed by me is not open to this objection.

The mode of operation of this device is ob vious from its construction. It is further ob- 9o vious that by unscrewing the plug II the gauze cylinder will drop out and all of the passage-ways be perfectly free and clear and all of the dirt which has collected in the bottom of the recess in the top of the plug H can 5 be cleared out, the parts cleaned and replaced without disturbing any adjustment of flow of gas leading to the burners. This is important in practice, as it is necessary to adjust these burners with reference to each other in 103 lamps of this construction, and where several lamps are connected with one gasometer they all have to be adjusted with reference to each other, and when this adjustment is once disturbed by the operation of cleaning out and clearing of passage-ways of dirt, which will inevitably collect and pass along with the flow of gas, it is a matter of considerable difficulty to go through a car and readjust all of the burners, as this adjustment, each being dependent upon the adjustment of the other, must be done by continuously adjusting each burner until they all flow with an even rate and furnish a uniform flame. One may be adjusted to furnish the proper flame and then after the others are opened it will need readjustment and continued readjustment for the reason, as before stated, that each adjustment is dependent upon the others. As stated, the means which I have proposed entirely obviates this difficulty.

Having thus described my invention, what I claim as new is- 1. In a gas-lamp the combination of an inlet-passage terminating in a chamber, a multiplicity of passage-ways leading from said chamber to a multiplicity of burners, a gauze strainingcylinder substantially concentrically interposed in said chamber and surrounding the induction-orifice forming an enlarged chamber outside of said gauze strainin g-cylinder and between it and each of said passage-ways, a removable plug forming the bottom of said chamber and supporting said gauze cylinder, substantially as described and for the purpose set forth.

2. In a gas-lamp the combination of an induction-passage, a multiplicity of outflowpassages leading to burners, a common chamber to all of the passages having its upper surface conical in shape, a removable plug from the bottom of said chamber and having a conical recess in its upper portion, a compressible straining-cylinder adapted to be interposed between the upper surface of said chamber and the conical recess in the upper portion of the plug forming the bottom of said chamber, substantially as described.

3. In a gas-lamp having a multiplicity of burners, a series of passage -ways leading thereto, a chamber common to said passageways and adapted to receive gas from a source of supply, a gauze cylinder in said chamber surrounding the induction passage and forn1- ing a diaphragm in said chamber dividing said chamber into two portions the outer of which is concentric with said gauze diaphragm and is common to all of the passage-ways leading to the burners and independent means for adjusting the flow to the burners.

JAMES F. liilCELRO'Y.

Witnesses:

R. A. PARKER, H. J. Nonnvn. 

